Indicators are clues, signs or markers that measure one aspect of a program and show how close a program is to its desired path and outcomes. Indicators are realistic and measurable criteria of project progress. They should be defined before the project starts, and allow us to monitor or evaluate whether a project does what it said it would do. In project planning; indicators form the link between theory and practice. An indicator is a tool to help you to know whether your work is making a difference. Indicators usually describe observable changes or events which relate to the project intervention. They provide the evidence that something has happened – whether an output delivered, an immediate effect occurred or a long-term change observed.